145

(329 replies, posted in Nintendo Handhelds)

it now has its own page:

http://www.nanoloop.com/mono/

146

(7 replies, posted in Nintendo Handhelds)

success?

147

(7 replies, posted in Nintendo Handhelds)

Please do not use the exe, especially don't double-click it.

To check if the adaptor responds properly, select the MIDI mode tab and click on "sync". It should immediately say "sync mode OK" below the buttons. If you see just "...", something is wrong with the MIDI communication.

Using multiple instances of nlmidi (the exe plus the web version or the web version in multiple browser tabs) or frequent double-clicking the exe may confuse the MIDI driver and / or the adaptor. For a fresh start, unplug the adaptor, restart the computer and use only the web version.

When you get the MIDI mode OK message, the adaptor works. If the update still doesn't work:

- Make sure the cable is connected to the adaptor with the right orientation:

- Make sure it's an "8 bit", e.g.  GB color / pocket compatible cable. GBA multiplayer cables (those with the extra bulge that makes them fit only the GBA link port) don't work.

pselodux wrote:

I guess in theory then it's possible to route the signal out to effects and then back in to the envelope..?

For that you'd have to cut the copper trace between the two vias.

pselodux wrote:

Did you say this would be the pcb cart like the recent nl1 carts? That must be some impressive SMD tech!

Yes, it's a PCB cart. It's even smaller than nl one and has a nice square shape (that's possible because it doesn't work on GBA anyway and hence doesn't have to push the GB cart switch). The SMD tech is not overly complex, it's all about the right configuration of the controller.

pselodux wrote:

will definitely pre-order as soon as I can!

Production starts now, but it's a new product and the software isn't finished yet, so no pre-orders.

The post-filter output for each channel is available, but it's pre-envelope.

150

(329 replies, posted in Nintendo Handhelds)

pselodux wrote:

Do you think there's any possibility to have some kind of external audio input for the filter(s)? It'd be cool to sync it to something else but also run the sync slave through the filters on the cart, using the step sequencer to control the filter, like on elektron products big_smile

I have tried this now and it works fine. Maybe not quite as loud as the internal sound, but OK. As said before, there is no connector on the cart but it's "hackable": Some vias have extended copper rings so that they can serve as solder pads. This way you can connect an audio input to the tone channel pre-filter and also grab VCC, GND, audio GND, and audio out. The latter is probably too weak to drive headphones but should be OK as line out.

somewhere around € 50 - 70.

152

(329 replies, posted in Nintendo Handhelds)

no, only MIDI sync like the other nanoloops. maybe a dedicated standalone device with MIDI in the future.

153

(329 replies, posted in Nintendo Handhelds)

I haven't tested external audio yet though. Signals may be too weak or there may be issues with different ground levels. I'll try it later.

154

(329 replies, posted in Nintendo Handhelds)

q3

155

(329 replies, posted in Nintendo Handhelds)

gb noise channel:

yes, gb noise is lovely. hovever, with the filter switched off and a modulation frequency applied via logic function, the analog noise sounds quite like gb noise (a lfsr playing at variable speed).


external audio:

tone and noise pre-filter signals appear on the cart surface. you could solder wires for external audio on the vias. in nanloop, a certain note value could be reserved as empty

Jazzmarazz wrote:

So preamp prosounds are a no?

I don't know. Isn't the VIN mixed to the signal within the CPU, pre-amp?

"nanoloop mono"

This cart uses the built-in analog components of a single PIC microcontroller (op-amps, comparators etc) to implement 3 analog channels, each with different filter characteristics.

- Tone: Dual rectangular waves with low-pass filter and switchable resonance (bridged-t filter)
- Click: Single pulse with extra-resonant bass filter for 808-like percussion (twin-t filter)
- Noise: Analog noise generator with higher frequencies, medium resonance bandpass filter (bridged-t filter)

The noise channel may also play two detuned, XORed square waves.

In this video, all filters are on, resonance is set to maximum and the tone channel's cutoff is controlled via buttons.


My goal was to use only the PIC and the usual bunch of passive components (Rs and Cs) to do as much analog as possible. The PIC acts as a hybrid soundchip here, somewhat similar to a SID, with a very specific character.


The whole circuit fits into a nanoloop one-like flat cart. Sound plays through the Game Boy's headphone output.

158

(3 replies, posted in Nintendo Handhelds)

SPI (the protocol used by the DMG) and USB are completely different, you need a controller to convert signals.

Set both to slave with A+B and then start one with START.

Do not use the plugs on the same end of the cable, only the oppposite ends have crossed wires.

pselodux wrote:

I've seen the page on the nanoloop site that refers to sync, and MIDI capability, but I can't seem to wire the cable up correctly; the instructions seem incomplete—it shows where to wire the IN and OUT pins, but what about GND? I tried using the middle pin and shield for GND with the IN and OUT pins wired as shown but it didn't work with any of my MIDI devices, as slave or master.

MIDI is a GND-less connection. The MIDI section on the nanoloop sync page decribes a cable that allows to sync nanoloop 2.7.6+ (nanoloop 1 and older nl 2 versions don't work) as MIDI master only.

Also, MIDI timecode (MTC) and MIDI clock are not the same, see
https://en.wikipedia.org/wiki/MIDI_timecode (used by OP-1) and
https://en.wikipedia.org/wiki/MIDI_beat_clock (used by nanoloop USB-MIDI)

The OP-1 manual says it can sync to MTC received via USB and nothing else. If I understand correctly, this means it

- has no MIDI port,
- has no analog sync,
- does not sync to MIDI clock via USB.
- can't send any kind of sync signal,
- you're supposed to buy the OPlab.

Possible solutions:

- A device that receives MIDI clock from nanoloop 2 via a real MIDI port and sends out MTC via USB host.
- A device that sends MTC via USB and analog clock via phone plug, this would allow to sync nanoloop 1 and 2 and the POs.
- A device that receives analog clock from nanoloop or POs and sends MTC via USB.
- A device that sends out MTC (for OP-1) through one USB and MIDI clock (for nanoloop USB-adaptor) through a second USB.